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Table 2 Coefficients and standard errors (SE) from a multivariable regression model. Interactions between variables are also presented

From: Ice swimming – ‘Ice Mile’ and ‘1 km Ice event’

Parameter Estimate SE df t p-value
Constant term 30.61 22.39 141.26 1.36 0.17
Female 0.23 0.17 129.30 1.29 0.19
Calendar year −0.01 0.01 141.25 −1.32 0.18
Number of attempts 0.007 0.01 82.60 0.62 0.53
Water temperature −0.005 0.01 59.42 −0.48 0.63
Wind chill 0.002 0.002 82.47 0.86 0.38
Female × Number of attempts −0.12 0.09 61.70 −1.31 0.19
Female × Water temperature −0.04 0.03 148.47 −1.40 0.16
Female × Wind chill −0.03 0.03 143.75 −1.07 0.28
Water temperature × × Wind chill 0.0003 0.001 75.83 0.31 0.75
Female × Water temperature × Wind chill 0.006 0.008 149.11 0.80 0.42
Female × Number of attempts × Water temperature × Wind chill 0.002 0.002 55.64 0.95 0.34
Female × Number of attempts × Water temperature × Wind chill −8.5 × E−5 0.0005 37.5 −0.16 0.87